Manufacturer Part Number: 516179|Bob Shape|BallMaximum Diameter (Inch - Fraction - 4 Decimals)|1Maximum Diameter (mm)|Bob Material|Wool FeltBob Density|Rock HardGrade|Grit|Head Length (Inch)|1Head Length (mm)|Shank Length (Decimal Inch)|Shank Length (mm)|Shank Length (Inch)|2Maximum Rpm|Shank Diameter (mm)|Shank Diameter|Shank Diameter (Decimal Inch)|Shank Diameter (Inch)|1/4Material Application|Material Application|Series|Product Service Code|UNSPSC Code|